Finding the Fourth Proportional to 132,434.78, 182,678.00 and 115,479.72

Step by Step Solution

1. Step 1: Write the proportion equation
   132,434.78 : 182,678.00 = 115,479.72 : x
2. Step 2: Convert to fraction form
   132,434.78/182,678.00 = 115,479.72/x
3. Step 3: Cross multiply
   132,434.78x = 182,678.00 × 115,479.72
4. Step 4: Simplify right side
   132,434.78x = 21,095,603,712.76
5. Step 5: Solve for x
   x = 21,095,603,712.76/132,434.78
6. Step 6: Final answer
   x = 159,290.52